A system for quick start of liquid air energy storage liquefaction process

Abstract

The utility model discloses a system for liquid air energy storage liquefaction process quick start, including liquefied cold box, liquid air storage tank, cold bed, release cold fan and regulator, be provided with plate fin heat exchanger, low temperature turbine expander, gas -liquid separator in the liquefied cold box, the gas -liquid separator export is connected with the reflux gas flow channel, the gas -liquid separator is open with liquid air storage tank, be provided with reflux gas flow group cooling assembly on the reflux gas flow channel, the cold bed is connected with release cold flow group cooling assembly and release cold temperature regulation component, the utility model discloses through the cooling of reflux gas flow group to the reflux gas atomization sprinkler device, accelerates the establishment of plate fin heat exchanger internal temperature field, when the cold bed cold quantity is deficient, through the cooling of release cold flow group in release cold flow channel to release cold flow group in release cold flow group cooling assembly, accelerates the formation of plate fin heat exchanger temperature gradient, the utility model discloses can effectively reduce the power consumption in starting process, improves the overall electric energy conversion efficiency of liquid air energy storage system.

Description

Technical Field

[0001] This utility model relates to the technical field of liquid air energy storage systems, specifically to a system for rapid start-up of the liquid air energy storage liquefaction process. Background Technology

[0002] Against the backdrop of the accelerated global energy structure transition towards a green and low-carbon future, renewable energy is increasingly accounting for a larger share of the energy sector due to its clean and sustainable advantages. However, the inherent volatility and intermittency of renewable energy sources such as wind and solar power pose numerous challenges to their large-scale grid integration. Energy storage technology, as a key means to solve this problem, has become a focus of research and development in the energy field. Liquid air energy storage technology, as a highly promising large-scale energy storage technology, has attracted widespread attention due to its significant advantages such as high energy density, short response time, environmental friendliness, low levelized cost of energy storage, and lack of geographical limitations.

[0003] In liquid air energy storage technology, rapid startup during the energy storage phase is crucial for improving overall system performance and enhancing the grid's peak-shaving capability. Traditional liquid air energy storage systems face numerous challenges during startup. For example, in the cold box startup process, the temperature gradient between the cold and hot ends of the cold box is disrupted in the initial startup phase. The compressor needs to spend a significant amount of time slowly establishing this gradient. In actual operation, this process is extremely time-consuming, during which the compressor must maintain approximately 80% load idling. This not only results in substantial energy waste but also severely impacts the system's response speed to changes in grid load. Furthermore, during off-peak electricity demand periods, if the cold box startup is delayed, it cannot fully utilize low-cost electricity for energy storage, reducing the system's economic efficiency.

[0004] In summary, current liquid air energy storage technology urgently needs a system that can rapidly start the liquefaction process of liquid air energy storage in order to improve the overall performance of the system and meet the needs of large-scale grid connection of renewable energy and stable grid operation. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a system for rapid start-up of the liquid air energy storage liquefaction process, which can realize the rapid start-up of the liquid air energy storage liquefaction process, so as to improve the overall performance of the system and meet the needs of large-scale grid connection of renewable energy and stable grid operation.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows.

[0007] A system for rapid start-up of a liquid air energy storage liquefaction process includes a liquefaction cold box, a liquid air storage tank, a cooling bed, a release fan, and a regulator. The liquefaction cold box contains a plate-fin heat exchanger, a cryogenic turbine expander, and a gas-liquid separator. The cryogenic turbine expander is connected to an inlet channel passing through the plate-fin heat exchanger, and its outlet is connected to the inlet of the gas-liquid separator via an outlet channel. A feed gas flow channel, connected to the inlet of the gas-liquid separator, is also provided inside the plate-fin heat exchanger. The outlet of the gas-liquid separator is connected to a counter-current flow channel, which passes through the plate-fin heat exchanger. The release fan is connected to the outlet end of the release flow channel passing through the plate-fin heat exchanger, and is connected to the cooling bed via an inlet channel. The cooling bed is connected to the release flow channel via an outlet channel. The inlet end of the flow channel is connected; the gas-liquid separator is connected to the liquid air storage tank through the liquid air product flow channel, and the bottom of the liquid air storage tank is connected to the liquid air spray main flow channel; the counterflow flow channel is equipped with a counterflow flow cooling component to cool the counterflow flow stream during startup, thereby accelerating the establishment of the temperature gradient between the cold and hot ends of the plate-fin heat exchanger; the cooling bed is connected to a release temperature regulating component used in conjunction with the counterflow flow cooling component during startup, and a release temperature cooling component to cool the release flow stream, thereby accelerating the establishment of the temperature gradient between the cold and hot ends of the plate-fin heat exchanger; the controlled ends of the plate-fin heat exchanger, low-temperature turbine expander, gas-liquid separator, cooling bed, release fan, liquid air storage tank, counterflow flow cooling component, release flow cooling component, and release temperature regulating component are respectively connected to the output ends of their respective regulators.

[0008] The aforementioned system for rapid start-up of the liquid air energy storage liquefaction process includes a cooling stream cooling component comprising a cooling atomizing spray device disposed on the outlet channel of the cooling bed, the cooling atomizing spray device being connected to the liquid air spray main channel through the cooling spray channel.

[0009] The aforementioned system for rapid start-up of the liquid air energy storage liquefaction process includes a cold release spray regulating valve installed on the cold release spray channel, with the controlled end of the cold release spray regulating valve connected to the output end of the regulator.

[0010] The aforementioned system for rapid start-up of the liquid air energy storage liquefaction process includes a cooling bed bypass channel, a cooling bed inlet channel located downstream of the cooling fan and a cooling bed outlet channel located downstream of the cooling atomizing spray device, which are respectively connected to both ends of the cooling bed bypass channel; a cooling bed bypass channel is provided on the cooling bed bypass channel, and the controlled end of the cooling bed bypass channel is connected to the output end of the regulator.

[0011] The aforementioned system for rapid start-up of the liquid air energy storage liquefaction process includes a reverse flow cooling component comprising a reverse flow atomizing spray device disposed on the reverse flow channel, the reverse flow atomizing spray device being connected to the liquid air spray main channel through the reverse flow spray channel.

[0012] The aforementioned system for rapid start-up of the liquid air energy storage liquefaction process includes a reverse flow gas spray regulating valve installed on the reverse flow gas spray channel, with the controlled end of the reverse flow gas spray regulating valve connected to the output end of the regulator.

[0013] The aforementioned system for rapid start-up of the liquid air energy storage liquefaction process includes a liquid air spray booster pump installed on the main liquid air spray channel, with the controlled end of the liquid air spray booster pump connected to the output end of a regulator.

[0014] The aforementioned system for rapid start-up of the liquid air energy storage liquefaction process includes a cooling temperature sensor installed on the cooling release channel between the plate-fin heat exchanger and the cold bed outlet channel; a pre-spray temperature sensor for the reverse flow channel near the gas-liquid separator and a post-spray temperature sensor for the reverse flow channel near the plate-fin heat exchanger; a raw material gas cold box outlet temperature sensor installed on the raw material gas flow channel between the plate-fin heat exchanger and the gas-liquid separator; and a cold box cold end metal temperature sensor installed at the cold end of the plate-fin heat exchanger. The outputs of the cooling temperature sensor, the pre-spray temperature sensor for the reverse flow channel, the post-spray temperature sensor for the reverse flow channel, the raw material gas cold box outlet temperature sensor, and the cold box cold end metal temperature sensor are respectively connected to the input of a regulator.

[0015] The technological advancements achieved by this utility model are as follows, due to the adoption of the above technical solutions.

[0016] This invention provides a system for rapid start-up of the liquid air energy storage liquefaction process. By installing a reverse flow cooling component on the reverse flow channel, the liquefaction system can spray a small amount of liquid air into the reverse flow channel during startup via a reverse flow atomizing spray device to cool the reverse flow stream. Simultaneously, a cold release temperature regulating component ensures that the temperature of the cold release stream is consistent with the temperature of the reverse flow, eliminating the temperature difference across the same cross section of the plate-fin heat exchanger. This accelerates the formation of the temperature gradient in the plate-fin heat exchanger while ensuring safety. When the cooling capacity of the cooling bed is insufficient, the cold release stream cooling component connected to the cooling bed further cools the cold release stream in the cold release channel, accelerating the formation of the temperature gradient in the plate-fin heat exchanger. This reduces the liquid output time during the liquefaction process, achieves rapid liquid production, reduces power consumption during startup, and improves the overall power conversion efficiency of the liquid air energy storage system.

[0017] Specifically, when cooling the cold release stream, on the one hand, when the cooling capacity of the cooling bed is sufficient, the cold air at the cold end of the cooling bed is mixed with the hot air at the hot end of the cooling bed using the bypass channel of the cooling bed. The temperature of the cold air released from the cooling bed outlet is adjusted by the cooling capacity of the cooling bed itself, and with the spray from the counterflow channel, the plate-fin heat exchanger can quickly establish a temperature gradient between the cold and hot ends. On the other hand, when the cooling capacity of the cooling bed is insufficient, liquid air is sprayed into the cooling bed outlet channel through the cold release atomizing spray device to cool the cold release stream. With the spray from the counterflow channel, the plate-fin heat exchanger can quickly establish a temperature gradient between the cold and hot ends even when the cooling capacity of the cooling bed is insufficient. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the specific structure of this utility model.

[0019] The components include: 1. Liquefaction cold box, 2. Plate-fin heat exchanger, 3. Low-temperature turbine expander, 4. Gas-liquid separator, 5. Cooling bed, 6. Cooling fan, 7. Liquid air storage tank, 8. Low-temperature expander inlet channel, 9. Low-temperature expander outlet channel, 10. Raw material gas channel, 11. Raw material gas throttling channel, 12. Reverse flow channel, 13. Cooling channel, 14. Cooling bed outlet channel, 15. Cooling bed bypass channel, 16. Liquid air product channel, 17. Liquid air spray main channel, and 18. Reverse flow spray. 19. Cooling spray channel; 20. Liquid air spray booster pump; 21. Reverse gas atomizing spray device; 22. Reverse gas spray regulating valve; 23. Cooling spray regulating valve; 24. Cooling atomizing spray device; 25. Cooling temperature regulating valve; 26. Temperature sensor before reverse gas spray; 27. Temperature sensor after reverse gas spray; 28. Raw material gas cold box outlet temperature sensor; 29. ​​Joule-Thomson valve; 30. Cooling temperature sensor; 31. Cold box cold end metal temperature sensor. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0021] A system for rapid start-up of liquid air energy storage liquefaction processes, such as Figure 1 As shown, it includes a liquefied cold box 1, a liquid air storage tank 7, a cooling bed 5, a release air fan 6, and a regulator. The liquefied cold box 1 is equipped with a plate-fin heat exchanger 2, a low-temperature turbine expander 3, and a gas-liquid separator 4. The controlled ends of the plate-fin heat exchanger 2, the low-temperature turbine expander 3, the gas-liquid separator 4, the cooling bed 5, and the release air fan 6 are respectively connected to the output ends of their respective regulators.

[0022] The cryogenic turbine expander 3 is connected to the cryogenic expander inlet channel 8 that passes through the plate-fin heat exchanger 2, and the outlet of the cryogenic turbine expander 3 is connected to the inlet of the gas-liquid separator 4 through the cryogenic expander outlet channel 9.

[0023] The gas-liquid separator 4 is connected to the liquid air storage tank 7 through the liquid air product flow channel 16. The bottom of the liquid air storage tank 7 is connected to the liquid air spray main flow channel 17. The liquid air spray booster pump 20 is installed on the liquid air spray main flow channel 17.

[0024] The plate-fin heat exchanger 2 is also provided with a raw material flow channel 10 that is connected to the inlet of the gas-liquid separator 4. A raw material flow channel 11 after throttling is provided between the raw material flow channel 10 and the gas-liquid separator 4. A Joule-Thomson valve 29 is provided between the raw material flow channel 10 and the raw material flow channel 11 after throttling. The controlled end of the Joule-Thomson valve 29 is connected to the output end of the regulator.

[0025] The cooling fan 6 is connected to the outlet end of the cooling channel 13 that passes through the plate-fin heat exchanger 2. The cooling fan 6 is connected to the cooling bed 5 through the cooling bed inlet channel. The cooling bed 5 is connected to the inlet end of the cooling channel 13 through the cooling bed outlet channel 14.

[0026] The cooling bed 5 is connected to a cooling stream cooling component that cools the cooling stream during startup, which can accelerate the establishment of the temperature gradient between the cold and hot ends of the plate-fin heat exchanger.

[0027] The cooling bed 5 is connected to a cooling temperature regulation component that regulates the temperature of the cooling flow stream during startup. This component enables the cooling temperature to track the temperature of the backflow gas during startup, thereby reducing the heat transfer temperature difference across the plate-fin heat exchanger cross section.

[0028] The cooling component includes a cooling atomizing spray device 24 installed on the outlet channel 14 of the cooling bed. The cooling atomizing spray device 24 is connected to the liquid air spray main channel 17 through the cooling spray channel 19.

[0029] A cooling spray regulating valve 23 is provided on the cooling spray channel 19, and the controlled end of the cooling spray regulating valve 23 is connected to the output end of the regulator.

[0030] A cooling temperature sensor 30 is installed on the cooling channel 13 located between the plate-fin heat exchanger 2 and the cooling bed outlet channel 14. The output end of the cooling temperature sensor 30 is connected to the input end of the regulator.

[0031] The cooling temperature regulation component includes a cooling bed bypass channel 15, with the cooling bed inlet channel located downstream of the cooling fan 6 and the cooling bed outlet channel 14 located downstream of the cooling atomizing spray device 24 respectively connected to both ends of the cooling bed bypass channel 15.

[0032] A cooling temperature regulating valve 25 is provided on the cooling bed bypass channel 15, and the controlled end of the cooling temperature regulating valve 25 is connected to the output end of the regulator.

[0033] The outlet of the gas-liquid separator 4 is connected to the counterflow airflow channel 12, which is set through the plate-fin heat exchanger 2.

[0034] The reverse flow channel 12 is equipped with a reverse flow cooling component that cools the reverse flow stream during startup. By cooling the reverse flow stream, the temperature gradient between the cold and hot ends of the plate-fin heat exchanger is accelerated.

[0035] The reverse airflow cooling component includes a reverse air atomizing spray device 21 installed on the reverse airflow channel 12. The reverse air atomizing spray device 21 is connected to the liquid air spray main channel 17 through the reverse air spray channel 18.

[0036] A reverse air spray regulating valve 22 is provided on the reverse air spray channel 18, and the controlled end of the reverse air spray regulating valve 22 is connected to the output end of the regulator.

[0037] A temperature sensor 26 for the reverse flow airflow duct 12 near the gas-liquid separator 4 is installed before the reverse flow airflow spray, and a temperature sensor 27 for the reverse flow airflow duct 12 near the plate-fin heat exchanger 2 is installed after the reverse flow airflow spray. The output terminals of the temperature sensor 26 for the reverse flow airflow spray and the temperature sensor 27 for the reverse flow airflow spray are respectively connected to the input terminal of the regulator.

[0038] A raw material gas cooling box outlet temperature sensor 28 is installed on the raw material gas flow channel 10 located between the plate-fin heat exchanger 2 and the gas-liquid separator 4. The output end of the raw material gas cooling box outlet temperature sensor 28 is connected to the input end of the regulator.

[0039] The cold end of the plate-fin heat exchanger 2 is equipped with a cold box cold end metal temperature sensor 31 for measuring the cold end metal temperature. The output end of the cold box cold end metal temperature sensor 31 is connected to the input end of the regulator.

[0040] In this embodiment, the regulator is a PID controller, and the plate-fin heat exchanger is an aluminum plate-fin heat exchanger.

[0041] The working principle of this utility model is as follows: During the liquefaction process, compressed air enters the plate-fin heat exchanger 2 through the raw material flow channel 10 and the low-temperature expander inlet channel 8 for heat exchange.

[0042] The compressed air flowing through the inlet channel 8 of the cryogenic expander is pre-cooled in the plate-fin heat exchanger 2 and then further expanded and cooled by the cryogenic turbine expander 3. After reaching the rated temperature, it enters the gas-liquid separator 4 through the outlet channel 9 of the cryogenic expander to separate the liquefied air, and then returns to the plate-fin heat exchanger 2 through the counterflow channel 12 to release cold energy.

[0043] Meanwhile, the cold energy stored inside the cooling bed 5 is transported by the cooling fan 6 and enters the cooling channel 13 in the plate-fin heat exchanger 2 through the cooling bed outlet channel 14, where the cold energy is released.

[0044] The compressed air entering the plate-fin heat exchanger 2 through the raw material flow channel 10 absorbs the cold energy released by the counterflow flow channel 12 and the cooling flow channel 13, and gradually changes from a gaseous state to a liquid state. After being further depressurized and cooled by the Joule-Thomson valve 29, a gas-liquid mixture is obtained. After passing through the raw material gas throttling channel 11, it enters the gas-liquid separator 4 for further separation of liquefied air. Then, it returns to the plate-fin heat exchanger 2 through the counterflow flow channel 12 to release cold energy.

[0045] The liquefied air separated by the gas-liquid separator 4 will be sent to the liquid air storage tank 7 through the liquid air product channel 16 for storage.

[0046] During the entire liquefaction process, a total of four media streams exchange heat in the plate-fin heat exchanger 2: the expansion precooling stream flowing through the inlet channel 8 of the cryogenic expander, the raw material gas stream flowing through the raw material gas stream channel 10, the reverse flow gas stream flowing through the reverse flow channel 12, and the release cold stream flowing through the release cold stream channel 13.

[0047] The countercurrent flow stream and the cooling flow stream flow from the cold end to the hot end of the plate-fin heat exchanger 2, releasing cold energy and causing the temperature to rise accordingly; the expansion precooling flow stream and the raw material flow stream flow from the hot end to the cold end of the plate-fin heat exchanger 2, absorbing cold energy and causing the temperature to drop accordingly.

[0048] The hot end of the plate-fin heat exchanger 2 is kept at a normal temperature, consistent with the temperature of the compressed air entering the plate-fin heat exchanger, while the cold end of the plate-fin heat exchanger 2 is at a low temperature, consistent with the air liquefaction temperature. When the liquefaction process reaches a steady state, the temperature gradient between the hot and cold ends of the plate-fin heat exchanger 2 is established and remains stable.

[0049] When energy storage ends, that is, when the air liquefaction process ends, due to the large temperature gradient between the two ends of the plate-fin heat exchanger 2, heat will be conducted from the hot end to the cold end. As a result, during the interval between energy storage and release, the temperature at the hot end gradually decreases and the temperature at the cold end gradually increases, and the temperature gradient is also destroyed.

[0050] When liquefaction restarts, the temperature gradient between the cold and hot ends of the plate-fin heat exchanger is disrupted, resulting in insufficient temperature drop of the pre-cooling stream flowing through the inlet channel 8 of the cryogenic expander. Coupled with insufficient gas volume, the speed of the cryogenic turbine expander 3 cannot reach the rated speed, leading to the outlet temperature of the cryogenic turbine expander 3 being much higher than the current cold end temperature of the plate-fin heat exchanger 2. As for the release stream flowing through the release channel 13, the disruption of the temperature gradient causes the cold end temperature to rise, resulting in the temperature of the release stream flowing into the release channel 13 through the outlet channel 14 of the cooling bed being much lower than the required cold end temperature. This causes an excessively large heat transfer temperature difference at the cold end section of the plate-fin heat exchanger 2, affecting the lifespan of the heat exchanger.

[0051] Therefore, by adding a cooling component consisting of a reverse airflow atomizing spray device 21 to the inlet of the reverse airflow channel 12, the liquid air stored in the liquid air storage tank 7 is pressurized by the liquid air spray booster pump 20 and then sprayed into the reverse airflow channel 12 through the reverse air spray regulating valve 22 and the reverse airflow atomizing spray device 21, so that the temperature of the reverse airflow drops rapidly and further decreases at a certain cooling rate, thereby accelerating the recovery of the temperature gradient between the cold end and the hot end of the plate-fin heat exchanger 2.

[0052] At the same time, a cold bed bypass channel 15 and a cold release temperature regulating valve 25 are installed between the cold bed inlet channel downstream of the cold release fan 6 and the cold release channel 13 downstream of the cold bed 5, so that the cold air at the cold end of the cold bed mixes with the hot air at the hot end of the cold bed, and the temperature of the cold release air at the outlet of the cold bed 5 is regulated, so that the cold bed 5 has the ability to regulate the cold release temperature.

[0053] When adjusting the cooling temperature through the cooling bed bypass channel and the cooling temperature regulating valve, by gradually reducing the opening of the cooling temperature regulating valve 25, the temperature drop rate of the cold fluid in the cooling channel 13 is kept consistent with the temperature drop rate of the cold fluid in the counterflow channel 12. This eliminates the temperature difference at the same cross section of the plate-fin heat exchanger 2, ensuring that the plate-fin heat exchanger can quickly and safely establish a temperature gradient, thereby reducing the liquid outlet time of the liquefaction process, thus reducing the start-up time of the liquefaction process and reducing start-up power consumption.

[0054] When the temperature of the temperature sensor 26 before the backflow air spray reaches the rated cold end temperature, the backflow air spray regulating valve 22 is completely closed, and the liquid air spray booster pump 20 is turned off.

[0055] When the cold end metal temperature sensor 31 of the cold box reaches or approaches the rated cold end temperature, the cold release temperature regulating valve 25 can be completely closed.

[0056] During the automatic cooling temperature regulation process of the cooling bed, if the cooling bed 5 itself has insufficient cooling capacity due to the long system resting time, the efficiency of cooling temperature regulation by the cooling bed itself is not high. By installing a cooling atomizing spray device 24 on the cooling bed outlet channel 14, the liquid air in the liquid air storage tank 7 is pressurized by the liquid air spray booster pump 20 and then sprayed into the cooling bed outlet channel 14 through the cooling spray regulating valve 23 for cooling. At the same time, the cooling spray regulating valve 23 and the counterflow air spray regulating valve 22 work together to reduce the temperature of the cooling stream and the counterflow air stream respectively, so that the plate-fin heat exchanger 2 can quickly establish a temperature gradient and reach the required liquefaction level.

[0057] When the temperature of the temperature sensor 26 before the backflow air spray reaches the rated cold end temperature, the backflow air spray regulating valve 22 is completely closed.

[0058] When the cold end metal temperature sensor 31 of the cold box reaches or approaches the rated cold end temperature, the cold release spray regulating valve 23 can be completely closed, and the cold release fan 6 and the liquid air spray booster pump 20 can be shut down.

Claims

1. A system for rapid start-up of a liquid air energy storage liquefaction process, characterized in that: The system includes a liquefied air cooling box (1), a liquid air storage tank (7), a cooling bed (5), a cooling fan (6), and a regulator. The liquefied air cooling box (1) is internally equipped with a plate-fin heat exchanger (2), a low-temperature turbine expander (3), and a gas-liquid separator (4). The low-temperature turbine expander (3) is connected to the low-temperature expander inlet channel (8) passing through the plate-fin heat exchanger (2), and the outlet of the low-temperature turbine expander (3) is connected to the inlet of the gas-liquid separator (4) through the low-temperature expander outlet channel (9). The plate-fin heat exchanger (2) is also internally connected to a raw material flow channel (10) that communicates with the inlet of the gas-liquid separator (4); the outlet of the gas-liquid separator (4) is connected to a counter-current flow channel (12), which passes through the plate-fin heat exchanger (2); the cooling fan (6) is connected to the outlet end of the cooling flow channel (13) that passes through the plate-fin heat exchanger (2), and the cooling fan (6) is connected to the cooling bed (5) through the cooling bed inlet channel, and the cooling bed (5) is connected to the cooling bed outlet channel. The inlet channel (14) is connected to the inlet end of the cooling channel (13); the gas-liquid separator (4) is connected to the liquid air storage tank (7) through the liquid air product channel (16), and the bottom of the liquid air storage tank (7) is connected to the liquid air spray main channel (17); the counter-current airflow channel (12) is equipped with a counter-current airflow cooling component that cools the counter-current airflow stream during startup to accelerate the establishment of the temperature gradient between the cold and hot ends of the plate-fin heat exchanger; the cooling bed (5) is connected to a counter-current airflow cooling component that works in conjunction with the counter-current airflow during startup. The cooling stream cooling component uses a cooling temperature regulating component and a cooling stream cooling component to cool the cooling stream in order to accelerate the establishment of the temperature gradient between the cold end and the hot end of the plate-fin heat exchanger; the plate-fin heat exchanger (2), the low-temperature turbine expander (3), the gas-liquid separator (4), the cooling bed (5), the cooling fan (6), the liquid air storage tank (7), the counterflow cooling stream component, the cooling stream cooling component, and the cooling temperature regulating component are respectively connected to the output end of their respective regulators.

2. The system for rapid start-up of a liquid air energy storage liquefaction process according to claim 1, characterized in that: The cooling component includes a cooling atomizing spray device (24) installed on the outlet channel (14) of the cooling bed. The cooling atomizing spray device (24) is connected to the liquid air spray main channel (17) through the cooling spray channel (19).

3. The system for rapid start-up of liquid air energy storage liquefaction process according to claim 2, characterized in that: A cooling spray regulating valve (23) is provided on the cooling spray channel (19), and the controlled end of the cooling spray regulating valve (23) is connected to the output end of the regulator.

4. A system for rapid start-up of a liquid air energy storage liquefaction process according to claim 2, characterized in that: The cooling temperature regulating component includes a cooling bed bypass channel (15), a cooling bed inlet channel located downstream of the cooling fan (6) and a cooling bed outlet channel (14) located downstream of the cooling atomizing spray device (24) are respectively connected to both ends of the cooling bed bypass channel (15); a cooling temperature regulating valve (25) is provided on the cooling bed bypass channel (15), and the controlled end of the cooling temperature regulating valve (25) is connected to the output end of the regulator.

5. A system for rapid start-up of a liquid air energy storage liquefaction process according to claim 1, characterized in that: The reverse airflow cooling component includes a reverse air atomizing spray device (21) installed on the reverse airflow channel (12), and the reverse air atomizing spray device (21) is connected to the liquid air spray main channel (17) through the reverse air spray channel (18).

6. A system for rapid start-up of a liquid air energy storage liquefaction process according to claim 5, characterized in that: A reverse air spray regulating valve (22) is provided on the reverse air spray channel (18), and the controlled end of the reverse air spray regulating valve (22) is connected to the output end of the regulator.

7. A system for rapid start-up of a liquid air energy storage liquefaction process according to claim 1, characterized in that: A liquid air spray booster pump (20) is installed on the liquid air spray main flow channel (17).

8. A system for rapid start-up of a liquid air energy storage liquefaction process according to claim 1, characterized in that: A cooling temperature sensor (30) is installed on the cooling channel (13) between the plate-fin heat exchanger (2) and the cooling bed outlet channel (14); a backflow gas spray pre-temperature sensor (26) is installed on the backflow gas channel (12) near the gas-liquid separator (4), and a backflow gas spray post-temperature sensor (27) is installed on the backflow gas channel (12) near the plate-fin heat exchanger (2); a raw material gas cold box outlet temperature sensor (28) is installed on the raw material gas flow channel (10) between the plate-fin heat exchanger (2) and the gas-liquid separator (4); a cold box cold end metal temperature sensor (31) is installed at the cold end of the plate-fin heat exchanger (2), and the output ends of the cooling temperature sensor (30), the backflow gas spray pre-temperature sensor (26), the backflow gas spray post-temperature sensor (27), the raw material gas cold box outlet temperature sensor (28), and the cold box cold end metal temperature sensor (31) are respectively connected to the input end of the regulator.

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